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<div class="header">
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<div class="title">peer.h</div>  </div>
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<div class="contents">
<a href="peer_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/* dtls -- a very basic DTLS implementation</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 2011--2013 Olaf Bergmann &lt;bergmann@tzi.org&gt;</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * Permission is hereby granted, free of charge, to any person</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * obtaining a copy of this software and associated documentation</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * files (the &quot;Software&quot;), to deal in the Software without</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> * restriction, including without limitation the rights to use, copy,</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * modify, merge, publish, distribute, sublicense, and/or sell copies</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * of the Software, and to permit persons to whom the Software is</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * furnished to do so, subject to the following conditions:</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * The above copyright notice and this permission notice shall be</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * included in all copies or substantial portions of the Software.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND,</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> * SOFTWARE.</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#ifndef _DTLS_PEER_H_</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define _DTLS_PEER_H_</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#include &lt;sys/types.h&gt;</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="tinydtls_8h.html">tinydtls.h</a>&quot;</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="global_8h.html">global.h</a>&quot;</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="session_8h.html">session.h</a>&quot;</span></div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="state_8h.html">state.h</a>&quot;</span></div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="crypto_8h.html">crypto.h</a>&quot;</span></div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="preprocessor">#ifndef WITH_CONTIKI</span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#include &quot;<a class="code" href="uthash_8h.html">uthash.h</a>&quot;</span></div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255">   47</a></span>&#160;<span class="keyword">typedef</span> <span class="keyword">enum</span> { <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8afd8391395303e28ee9b375232cb68a1e">DTLS_CLIENT</a>=0, <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255">DTLS_SERVER</a> } <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8">dtls_peer_type</a>;</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;</div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="structdtls__peer__t.html">   52</a></span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> {</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="preprocessor">#ifndef WITH_CONTIKI</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="structdtls__peer__t.html#a4241666f9097d15a486840bce28c3fd5">   54</a></span>&#160;<span class="preprocessor"></span>  <a class="code" href="structUT__hash__handle.html">UT_hash_handle</a> <a class="code" href="structdtls__peer__t.html#a4241666f9097d15a486840bce28c3fd5">hh</a>;</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="preprocessor">#else </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="preprocessor"></span>  <span class="keyword">struct </span><a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *next;</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">   59</a></span>&#160;  <a class="code" href="structsession__t.html">session_t</a> <a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>;         </div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">   61</a></span>&#160;  <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8">dtls_peer_type</a> <a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>;       </div>
<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">   62</a></span>&#160;  <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35">dtls_state_t</a> <a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a>;        </div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">   64</a></span>&#160;  <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[2];</div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">   65</a></span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;} <a class="code" href="peer_8h.html#a6038bb7f08c62ea6f0fd2a0075860055">dtls_peer_t</a>;</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;</div>
<div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="peer_8h.html#af5de0315efd7e8c6b1aecf60078b2dd7">   68</a></span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *<a class="code" href="peer_8h.html#af5de0315efd7e8c6b1aecf60078b2dd7">dtls_security_params_epoch</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, uint16_t epoch)</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;{</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;  <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[0] &amp;&amp; peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[0]-&gt;<a class="code" href="structdtls__security__parameters__t.html#a2bce1fa0bf77eeab8fadca824de602da">epoch</a> == epoch) {</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <span class="keywordflow">return</span> peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[0];</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1] &amp;&amp; peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1]-&gt;<a class="code" href="structdtls__security__parameters__t.html#a2bce1fa0bf77eeab8fadca824de602da">epoch</a> == epoch) {</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <span class="keywordflow">return</span> peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1];</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;  }</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;}</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div>
<div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="peer_8h.html#a48abcad7383e1db957af9b4fed030d52">   79</a></span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *<a class="code" href="peer_8h.html#a48abcad7383e1db957af9b4fed030d52">dtls_security_params</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer)</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;{</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;  <span class="keywordflow">return</span> peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[0];</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;}</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;</div>
<div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="peer_8h.html#ab6e209f206f570eed246530ec7960943">   84</a></span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *<a class="code" href="peer_8h.html#ab6e209f206f570eed246530ec7960943">dtls_security_params_next</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer)</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;{</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;  <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1])</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    <a class="code" href="crypto_8c.html#ad54069f2880b3c07185ebba736d02d17">dtls_security_free</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1]);</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1] = <a class="code" href="crypto_8c.html#a1d568085636a04b4706b7e50df802a7b">dtls_security_new</a>();</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;  <span class="keywordflow">if</span> (!peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1]) {</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;  }</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1]-&gt;<a class="code" href="structdtls__security__parameters__t.html#a2bce1fa0bf77eeab8fadca824de602da">epoch</a> = peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[0]-&gt;<a class="code" href="structdtls__security__parameters__t.html#a2bce1fa0bf77eeab8fadca824de602da">epoch</a> + 1;</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;  <span class="keywordflow">return</span> peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1];</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;}</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div>
<div class="line"><a name="l00097"></a><span class="lineno"><a class="line" href="peer_8h.html#a9d0ec25ba319a38b17f30cf156e85c51">   97</a></span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="peer_8h.html#a9d0ec25ba319a38b17f30cf156e85c51">dtls_security_params_free_other</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer)</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;{</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;  <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> * security0 = peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[0];</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;  <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> * security1 = peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1];</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;  <span class="keywordflow">if</span> (!security0 || !security1 || security0-&gt;<a class="code" href="structdtls__security__parameters__t.html#a2bce1fa0bf77eeab8fadca824de602da">epoch</a> &lt; security1-&gt;<a class="code" href="structdtls__security__parameters__t.html#a2bce1fa0bf77eeab8fadca824de602da">epoch</a>)</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;  <a class="code" href="crypto_8c.html#ad54069f2880b3c07185ebba736d02d17">dtls_security_free</a>(security1);</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1] = NULL;</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;}</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;</div>
<div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="peer_8h.html#a9c37ce3fd7539154289dd17215179e2d">  109</a></span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="peer_8h.html#a9c37ce3fd7539154289dd17215179e2d">dtls_security_params_switch</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer)</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;{</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;  <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> * security = peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1];</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[1] = peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[0];</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">security_params</a>[0] = security;</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;}</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;<span class="keywordtype">void</span> <a class="code" href="peer_8h.html#a0297e9d772bfca004a98462d9c7d2828">peer_init</a>();</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *<a class="code" href="peer_8h.html#a209e22be64be13e116711829d21d864c">dtls_new_peer</a>(<span class="keyword">const</span> <a class="code" href="structsession__t.html">session_t</a> *<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>);</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;<span class="keywordtype">void</span> <a class="code" href="peer_8h.html#a037178c201b2e6b7361570ff700f059d">dtls_free_peer</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer);</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;</div>
<div class="line"><a name="l00136"></a><span class="lineno"><a class="line" href="peer_8h.html#a64d83f0fe464f0eeb905b913345d0614">  136</a></span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35">dtls_state_t</a> <a class="code" href="peer_8h.html#a64d83f0fe464f0eeb905b913345d0614">dtls_peer_state</a>(<span class="keyword">const</span> <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer) {</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;  <span class="keywordflow">return</span> peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a>;</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;}</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div>
<div class="line"><a name="l00144"></a><span class="lineno"><a class="line" href="peer_8h.html#aaad8608f29d9a70bf09b7de310185c48">  144</a></span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="peer_8h.html#aaad8608f29d9a70bf09b7de310185c48">dtls_peer_is_connected</a>(<span class="keyword">const</span> <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer) {</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;  <span class="keywordflow">return</span> peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> == <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122">DTLS_STATE_CONNECTED</a>;</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;}</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* _DTLS_PEER_H_ */</span><span class="preprocessor"></span></div>
<div class="ttc" id="peer_8h_html_a64d83f0fe464f0eeb905b913345d0614"><div class="ttname"><a href="peer_8h.html#a64d83f0fe464f0eeb905b913345d0614">dtls_peer_state</a></div><div class="ttdeci">static dtls_state_t dtls_peer_state(const dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00136">peer.h:136</a></div></div>
<div class="ttc" id="tinydtls_8h_html"><div class="ttname"><a href="tinydtls_8h.html">tinydtls.h</a></div><div class="ttdoc">public tinydtls API </div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35">dtls_state_t</a></div><div class="ttdeci">dtls_state_t</div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00040">state.h:40</a></div></div>
<div class="ttc" id="structsession__t_html"><div class="ttname"><a href="structsession__t.html">session_t</a></div><div class="ttdef"><b>Definition:</b> <a href="session_8h_source.html#l00049">session.h:49</a></div></div>
<div class="ttc" id="crypto_8h_html"><div class="ttname"><a href="crypto_8h.html">crypto.h</a></div></div>
<div class="ttc" id="session_8h_html"><div class="ttname"><a href="session_8h.html">session.h</a></div></div>
<div class="ttc" id="peer_8h_html_a6038bb7f08c62ea6f0fd2a0075860055"><div class="ttname"><a href="peer_8h.html#a6038bb7f08c62ea6f0fd2a0075860055">dtls_peer_t</a></div><div class="ttdeci">struct dtls_peer_t dtls_peer_t</div></div>
<div class="ttc" id="peer_8h_html_a0297e9d772bfca004a98462d9c7d2828"><div class="ttname"><a href="peer_8h.html#a0297e9d772bfca004a98462d9c7d2828">peer_init</a></div><div class="ttdeci">void peer_init()</div><div class="ttdef"><b>Definition:</b> <a href="peer_8c_source.html#l00031">peer.c:31</a></div></div>
<div class="ttc" id="peer_8h_html_ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255"><div class="ttname"><a href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255">DTLS_SERVER</a></div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00047">peer.h:47</a></div></div>
<div class="ttc" id="structdtls__peer__t_html_a4e23cc3b273813744524c3db1fda9c83"><div class="ttname"><a href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">dtls_peer_t::state</a></div><div class="ttdeci">dtls_state_t state</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00062">peer.h:62</a></div></div>
<div class="ttc" id="structUT__hash__handle_html"><div class="ttname"><a href="structUT__hash__handle.html">UT_hash_handle</a></div><div class="ttdef"><b>Definition:</b> <a href="uthash_8h_source.html#l00961">uthash.h:961</a></div></div>
<div class="ttc" id="peer_8h_html_af5de0315efd7e8c6b1aecf60078b2dd7"><div class="ttname"><a href="peer_8h.html#af5de0315efd7e8c6b1aecf60078b2dd7">dtls_security_params_epoch</a></div><div class="ttdeci">static dtls_security_parameters_t * dtls_security_params_epoch(dtls_peer_t *peer, uint16_t epoch)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00068">peer.h:68</a></div></div>
<div class="ttc" id="global_8h_html"><div class="ttname"><a href="global_8h.html">global.h</a></div></div>
<div class="ttc" id="peer_8h_html_a209e22be64be13e116711829d21d864c"><div class="ttname"><a href="peer_8h.html#a209e22be64be13e116711829d21d864c">dtls_new_peer</a></div><div class="ttdeci">dtls_peer_t * dtls_new_peer(const session_t *session)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8c_source.html#l00072">peer.c:72</a></div></div>
<div class="ttc" id="structdtls__peer__t_html_a44ebb2ba643269c7e6943f3a9040febe"><div class="ttname"><a href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">dtls_peer_t::session</a></div><div class="ttdeci">session_t session</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00059">peer.h:59</a></div></div>
<div class="ttc" id="peer_8h_html_a9d0ec25ba319a38b17f30cf156e85c51"><div class="ttname"><a href="peer_8h.html#a9d0ec25ba319a38b17f30cf156e85c51">dtls_security_params_free_other</a></div><div class="ttdeci">static void dtls_security_params_free_other(dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00097">peer.h:97</a></div></div>
<div class="ttc" id="structdtls__peer__t_html_aa176a7ffe3a780dc97a716dfffb54992"><div class="ttname"><a href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">dtls_peer_t::handshake_params</a></div><div class="ttdeci">dtls_handshake_parameters_t * handshake_params</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00065">peer.h:65</a></div></div>
<div class="ttc" id="structdtls__peer__t_html"><div class="ttname"><a href="structdtls__peer__t.html">dtls_peer_t</a></div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00052">peer.h:52</a></div></div>
<div class="ttc" id="peer_8h_html_a48abcad7383e1db957af9b4fed030d52"><div class="ttname"><a href="peer_8h.html#a48abcad7383e1db957af9b4fed030d52">dtls_security_params</a></div><div class="ttdeci">static dtls_security_parameters_t * dtls_security_params(dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00079">peer.h:79</a></div></div>
<div class="ttc" id="peer_8h_html_ae30cd4bcffed73f79f17c09e5a1452c8afd8391395303e28ee9b375232cb68a1e"><div class="ttname"><a href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8afd8391395303e28ee9b375232cb68a1e">DTLS_CLIENT</a></div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00047">peer.h:47</a></div></div>
<div class="ttc" id="peer_8h_html_a9c37ce3fd7539154289dd17215179e2d"><div class="ttname"><a href="peer_8h.html#a9c37ce3fd7539154289dd17215179e2d">dtls_security_params_switch</a></div><div class="ttdeci">static void dtls_security_params_switch(dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00109">peer.h:109</a></div></div>
<div class="ttc" id="peer_8h_html_ae30cd4bcffed73f79f17c09e5a1452c8"><div class="ttname"><a href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8">dtls_peer_type</a></div><div class="ttdeci">dtls_peer_type</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00047">peer.h:47</a></div></div>
<div class="ttc" id="crypto_8c_html_ad54069f2880b3c07185ebba736d02d17"><div class="ttname"><a href="crypto_8c.html#ad54069f2880b3c07185ebba736d02d17">dtls_security_free</a></div><div class="ttdeci">void dtls_security_free(dtls_security_parameters_t *security)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00174">crypto.c:174</a></div></div>
<div class="ttc" id="structdtls__peer__t_html_a6c85e48495ae7de8ddfc4c4fb2a350af"><div class="ttname"><a href="structdtls__peer__t.html#a6c85e48495ae7de8ddfc4c4fb2a350af">dtls_peer_t::security_params</a></div><div class="ttdeci">dtls_security_parameters_t * security_params[2]</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00064">peer.h:64</a></div></div>
<div class="ttc" id="state_8h_html"><div class="ttname"><a href="state_8h.html">state.h</a></div><div class="ttdoc">state information for DTLS FSM </div></div>
<div class="ttc" id="structdtls__peer__t_html_a4241666f9097d15a486840bce28c3fd5"><div class="ttname"><a href="structdtls__peer__t.html#a4241666f9097d15a486840bce28c3fd5">dtls_peer_t::hh</a></div><div class="ttdeci">UT_hash_handle hh</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00054">peer.h:54</a></div></div>
<div class="ttc" id="crypto_8c_html_a1d568085636a04b4706b7e50df802a7b"><div class="ttname"><a href="crypto_8c.html#a1d568085636a04b4706b7e50df802a7b">dtls_security_new</a></div><div class="ttdeci">dtls_security_parameters_t * dtls_security_new()</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00155">crypto.c:155</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122">DTLS_STATE_CONNECTED</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00049">state.h:49</a></div></div>
<div class="ttc" id="peer_8h_html_ab6e209f206f570eed246530ec7960943"><div class="ttname"><a href="peer_8h.html#ab6e209f206f570eed246530ec7960943">dtls_security_params_next</a></div><div class="ttdeci">static dtls_security_parameters_t * dtls_security_params_next(dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00084">peer.h:84</a></div></div>
<div class="ttc" id="structdtls__security__parameters__t_html"><div class="ttname"><a href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a></div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00099">crypto.h:99</a></div></div>
<div class="ttc" id="structdtls__security__parameters__t_html_a2bce1fa0bf77eeab8fadca824de602da"><div class="ttname"><a href="structdtls__security__parameters__t.html#a2bce1fa0bf77eeab8fadca824de602da">dtls_security_parameters_t::epoch</a></div><div class="ttdeci">uint16_t epoch</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00103">crypto.h:103</a></div></div>
<div class="ttc" id="structdtls__handshake__parameters__t_html"><div class="ttname"><a href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a></div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00115">crypto.h:115</a></div></div>
<div class="ttc" id="peer_8h_html_a037178c201b2e6b7361570ff700f059d"><div class="ttname"><a href="peer_8h.html#a037178c201b2e6b7361570ff700f059d">dtls_free_peer</a></div><div class="ttdeci">void dtls_free_peer(dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8c_source.html#l00041">peer.c:41</a></div></div>
<div class="ttc" id="peer_8h_html_aaad8608f29d9a70bf09b7de310185c48"><div class="ttname"><a href="peer_8h.html#aaad8608f29d9a70bf09b7de310185c48">dtls_peer_is_connected</a></div><div class="ttdeci">static int dtls_peer_is_connected(const dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00144">peer.h:144</a></div></div>
<div class="ttc" id="structdtls__peer__t_html_aeca80f1bcbcfdba89a2ab08e4bc48120"><div class="ttname"><a href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">dtls_peer_t::role</a></div><div class="ttdeci">dtls_peer_type role</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00061">peer.h:61</a></div></div>
<div class="ttc" id="uthash_8h_html"><div class="ttname"><a href="uthash_8h.html">uthash.h</a></div></div>
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